How information technologies helps in expanding your small firm?

A lot of people in Poland are leading their own companies. Some of them are selling some materials in the web, others are leading their own store with organic food. There are also individuals who are working in a beauty sector, such as beauty centers or barber shops. Those last group could really use some help with managing it in a informal technologies level. There are many of different great applications, that could be helpful in sectors like that. But what service we really need? And where to find the greatest specialist?